Ye Yuntang, the legitimate daughter of the Hou family, was betrayed by her stepmother, stepsister and fiancé, and was imprisoned in a woodshed. After narrowly escaping, she was determined to take revenge. With wisdom and courage, Ye Yuntang successfully attracted the attention of Emperor Zhou Kong and entered the palace to become his favorite concubine. During the battle in the harem, she skillfully used her wits to defeat conspiracies and helped Zhou Kong consolidate the imperial power. Their relationship also heated up amidst the twists and turns. However, the Queen Mother's checks and balances, the revenge of old enemies, and the crisis of heirs are coming one after another. Can Ye Yuntang rely on tenacity and strategy to gain a foothold in this deep palace and join hands with Zhou Kong for a lifetime?